@INPROCEEDINGS{Zhang19icra, 
  author    = {Zichao Zhang and Davide Scaramuzza}, 
  booktitle = {{IEEE} Int. Conf. Robot. Autom. ({ICRA})},
  title     = {Beyond Point Clouds: Fisher Information Field for Active Visual Localization}, 
  year      = {2019}, 
  month     = {May}
}